(-7m^2+9n^2-6n)-[(9m^2-6m+6n)+(-9m^2)+4n^2]?

0 ⤊

Perform the operations and simplify your answer

2007-04-26 21:33:37 · 3 answers · asked by Maven 2 in Science & Mathematics ➔ Mathematics

it is -7m^2+9n^2-6n-9m^2+6m-6n+9m^2-4n^2
so when we simplify it is "-7m^2 + 5n^2 - 12n + 6m

2007-04-26 21:47:57 · answer #1 · answered by Hurricane 5 · 0⤊ 0⤋

= (- 7m² + 9n² - 6n) - (4n² - 6m - 2n)
= - 7m² + 5n² - 4n + 6m
= m(6 - 7m) + n(5n - 4)

2007-04-26 22:04:26 · answer #2 · answered by Como 7 · 0⤊ 0⤋

(-9m-2n)+(-2m-6n)=

2015-11-09 05:13:24 · answer #3 · answered by Fredy 1 · 0⤊ 0⤋